If you’re looking to deck the halls this holiday season, the Greenwich Botanical Center is offering holiday blooms for sale.

The greenhouse at 130 Bible St. has a large selection of spectacular plants and fresh evergreens for your holiday decorating needs, including cyclamen, poinsettias, amaryllis, potted and loose paperwhites, orchids and more.

Plants can also make perfect gifts for teachers, co-workers, friends or for yourself, members of the Greenwich Botanical Center said.

The greenhouse in Cos Cob is open weekdays from 10 a.m. to 4:30 p.m. and 9 a.m. to 1 p.m. Saturdays, in December.

A Bloc of Writers, a Greenwich-based writing, editing, and tutoring company, has launched a new service called Essay Rx, designed to help students proof, polish, and perfect their college admissions essays.

“With less than a month before regular decision applications are due, students need a way to receive quick, professional feedback on their college essays,” said Michele Turk, founder of A Bloc of Writers.

Send A Bloc of Writers a draft of your Common Application essay, and they will review it and offer extensive feedback on topic, theme, tone, and grammar within 48 hours. The fee is $200. Students can also schedule a private 30-minute meeting in person or via Skype with a tutor for an additional $75.

The Chinese Language School of Connecticut is sponsoring a free introductory math session for gifted math students in second, third and fourth grades. The session will be from 12:45 to 1:45 p.m. Dec. 16 at UConn-Stamford.

It’s designed for students who love to solve problems. The kids can also meet other students who enjoy math. There will also be a parents session.